Nobody forgets Guy Fawkes in Britain, even if you want to - it's late evening here and there are so many fireworks going off outside in neighbouring gardens that it sounds like a full-blown war zone. I don't know when fireworks went from 'pretty, whizzy, sparkly things' to 'combat-ready, cloud-busting, weapons-grade incendiary cannons' but it's happened and it's loud!

Cheese mould destroyer. The blades of the tripod sink into the cheese, and the laser-powered point zaps all the blue veins from the cheese. It was originally developed for human use (varicose veins) but the blades chopped up people's legs something terrible.

I'd like a 4-armed T-shirt, size XXL, so that I can carry away my dead and/or drugged victims without arousing suspicion.

Of course if I'd watched this video too it would all have been so incredibly simple...

http://www.youtube.com/watch?v=3LdlSAN1yks

I'm even more in awe now that I know how to make the weird gears.

Is there some kind of scientific theory for devising these gears? I got as far as thinking that each one has to have a negative 'map' of the teeth on a connecting gear, but then you have the overall shape of the thing and... I would have no idea where to start. Great stuff to watch.

This is very very Irish to my ears, in a Finian's Rainbow kind of way, although it does veer into Scottish at times.

I didn't realise that laughter tracks were still being used in the 21st century. This is a particularly badly timed one!

Any driver hitting a barrier like this would presumably be dead as all the shock of the impact blasted into him... so can I get a portable version for the next time some idiot drives into the back of my car? Looks like they make the bollard out of the same material as black box flight records and day-old pizza crusts.